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2SA778A PNP Transistor

The 2SA778A is a bipolar junction transistor (BJT) with an PNP-type configuration. That means the 2SA778A transistor has a negatively charged layer between two positively charged layers. This transistor has three terminals Base, Collector, and Emitter.

The 2SA778A transistor symbol shows an arrow from the emitter into the base. This means that the current flows from emitter to collector terminal.

Circuit diagram symbol of the 2SA778A transistor as follows.

Circuit diagram symbol of the 2SA778A transistor

2SA778A Transistor Specification

Transistor Code 2SA778A
Transistor Type BJT
Transistor Polarity PNP
Transistor Material Silicon(SI)
Package SOT33
Collector Power Dissipation (Maximum) PC 0.2W
Collector-Base Voltage (Maximum) VCB 180V
Collector Current (Maximum) IC 0.05A
Operating Junction Temperature (Maximum) TJ 135°C
Forward Current Transfer Ratio (hFE Value) 90
Transition Frequency FT 30MHz
Collector Capacitance CC 10pF

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